So how acidic is too acidic then? When is this equilibrium between hydroxyapatite and dissolved minerals tipped too far? Well, that depends on the pH of your saliva. If you have a pool, you may just have litmus strips sitting around, and it could be fun to find the pH of your spit. The more ions in your spit, the lower the critical pH, or in other words, the more acid your teeth can withstand before demineralizing.
So, long story short, are carbonated waters good for your teeth? The pH of Gatorade is about 3, of orange juice is about and of Coke is 2. But if like me, you think that defeats the purpose, then do what I do and rinse your mouth after with tap water.
It might not be that seltzer water is quite the healthy alternative to soda we all hoped, but a better alternative it certainly is. This keeps your blood at a slightly alkaline pH of 7. Carbonated water is acidic, but your body should maintain a stable, slightly alkaline pH no matter what you consume. One of the biggest concerns about sparkling water is its effect on teeth, as your enamel is directly exposed to acid.
There is very little research on this topic, but one study found that sparkling mineral water damaged enamel only slightly more than still water. Furthermore, mineral water was times less damaging than a sugary soft drink 3. In one study, carbonated beverages showed strong potential to destroy enamel — but only if they contained sugar.
In fact, a non-carbonated sweet beverage Gatorade was more harmful than a carbonated sugar-free drink Diet Coke 4. Another study placed samples of tooth enamel in various beverages for up to 24 hours. The sugar-sweetened carbonated and non-carbonated beverages resulted in significantly greater enamel loss than their diet counterparts 5. A review of several studies found that the combination of sugar and carbonation may lead to severe dental decay 6.
However, plain sparkling water appears to pose little risk to dental health. Only the sugary types are harmful 7. Sugar-sweetened carbonated beverages can erode tooth enamel, but plain carbonated water appears relatively harmless.
Carbonated water may benefit your digestive health in several ways. Studies suggest that sparkling water may improve swallowing ability in both young and older adults 8 , 9 , In one study, 16 healthy people were asked to repeatedly swallow different liquids. Carbonated water showed the strongest ability to stimulate the nerves responsible for swallowing 9. Another study showed that the combination of cold temperature and carbonation strengthened these beneficial effects Those with the most frequent, severe symptoms experienced the greatest relief Carbonated water may also extend feelings of fullness after meals to a greater extent than plain water.
Sparkling water may help food remain in your stomach longer, which can trigger a greater sensation of fullness Yet another is that it can irritate the stomach. These concerns stem from past studies on the health effects of carbonated soft drinks, also known as sodas or colas. These are drinks that contain chemicals, and artificial or natural sugars.
Studies have indeed linked carbonated soft drinks with lower bone mineral density. Studies have also indicated that poor bone health may result when soft drinks replace calcium-rich foods, such as milk.
Another study showed that tooth erosion is caused by the high acid content in many sodas and not carbonation. Flavored sparkling water may contribute to enamel decay, however. The flavoring agents make the water significantly more acidic, which is what causes the enamel to wear down. Root beer is the least acidic of sodas: it does not contain phosphoric acid and is typically less carbonated.
The effects of acidity in soft drinks may be more damaging to teeth than the sugar they contain. Industrial users of phosphoric acid apply it to steel parts in order to strip them to bare metal before being painted. The Academy of General Dentistry warns that the acid levels in soft drinks can cause damage to teeth and recommends that their intake be limited, especially for children.
Nutrition Beverages Soda. What Kind of Acids Are in Sodas? By Don Patton.
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